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Whether our past was glorious with regard to food security? Whether modern farming degraded our soil and destroyed its properties? Whether we have lost all our crop varieties? Are organic farming, biodynamic farming, Homa farming, Zero budget natural farming etc have scientific basis and sufficient to meet or food security challenges? പ്രകൃതി കൃഷിയും ജൈവകൃഷിയും - ഒരു ശാസ്ത്രീയ വീക്ഷണം Dr K.M.Sreekumar, Professor, Kerala Agricultural University click to share on facebook:- https://www.facebook.com/sharer/sharer.php?u=http://youtu.be/DlFK68_tKfI click to share on twitter :- https://twitter.com/home?status=http://youtu.be/DlFK68_tKfI click to share on google+ :- https://plus.google.com/share?url=http://youtu.be/DlFK68_tKfI